Interactions between surface water and groundwater in Chabagou Catchment using hydrogen and oxygen isotopes
文献类型：EI期刊论文
| 作者 | Xia Jun; Song Xianfang; Yu Jingjie; Zhang Yinghua |
| 发表日期 | 2009 |
| 关键词 | Aquifers Blood vessel prostheses Catchments Dissolution Drought Electric conductivity Electric conductivity measurement Evaporation Groundwater geochemistry Hydrogen Hydrogeology Isotopes Oxygen Precipitation (chemical) Runof |
| 英文摘要 | Loess Plateau is of great significance to the hydrology in the Yellow River Basin, and interactions between surface water and groundwater at Loess Plateau, especially at the Hilly and Gully Region, are important preconditions for water resources evaluation and ecological restoration. For this aim, Chabagou Catchment in the Hilly and Gully Region was chosen to study interactions between the two by integrating hydrogen and oxygen isotopes and hydrochemistry. In Chabagou Catchment, precipitation, surface water and groundwater were observed and sampled systematically; two trips of instantaneous sampling, including surface water and groundwater, were performed in June and August of 2005, with electrical conductivity (EC) and pH values tested in situ. The isotopic compositions and EC of surface water varied greatly and had different trends along the stream. The isotopic compositions of surface runoff concentrated along the mainstream. EC increased in June, but in August, it decreased from upper to middle reaches and then increased at the lower reaches. Variation of isotopic compositions in groundwater was small while it was large for EC. According to the isotopic and hydrochemical information of instantaneous sampling, relationships between surface water and groundwater has been identified. In dry season, low flow surface water is recharged by contact spring in fractured bedrock, and evaporates severely during flow. In rainy season, peak runoff recedes quickly and only groundwater adjacent to the mainstream or gullies can get recharge during flood; when pea runoff recedes, surface runoff mainly gets recharge from spring water and surface water held up by silt arresters at the upper reaches; increasing recharge of contact springs and runoff in branches reduces EC of surface water at the middle reaches; while at the lower reaches, recharge from spring and branches decreases and surface water gets severe evaporation along the mainstream. No matter in dry season or in rainy season when peak runoff recedes, surface water experiences serious evaporation, and only phreatic aquifers near mainstream can get recharge from surface runoff and experiences severe groundwater evaporation. Silt arresters can obviously hold up surface runoff and increase the adjacent groundwater and baseflow. The enhanced evaporation caused by silt arresters may concentrate the total dissolved solid of surface water at upper layers, while its influence on groundwater quality of groundwater is not apparent yet and calls for further study. |
| 出处 | Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering
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| 卷 | 17期:1页:8-20 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24612]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Xia Jun,Song Xianfang,Yu Jingjie,et al. Interactions between surface water and groundwater in Chabagou Catchment using hydrogen and oxygen isotopes. 2009. |
入库方式： OAI收割
来源：地理科学与资源研究所
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